【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《四五年级口算题420道有答案》,欢迎阅读!
17×40=680, 100-63=37, 3.2+1.68=4.88, 2.8×0.4= 1.12 14-7.4=6.6, 1.92÷0.04=48, 0.32×500=160, 0.65+4.35= 5 10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06=1.44 0.75÷15=0.05, 0.4×0.8=0.32, 4×0.25=1, 0.36+1.54=2 1.01×99=99.99, 420÷35=12, 25×12=300, 135÷0.5=270 3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4 1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4 3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5 0.51÷17=0.03, 32.8+19=51.8, 5.2÷1.3=4, 1.6×0.4= 0.64 4.9×0.7=3.43, 1÷5=0.2, 6÷12=0.5, 0.87-0.49=0.38 10-3=7 ,15-4=11,20-5=15,25-6=19,30-7=23 35-8=27,40-9=31,45-10=35,50-11=39,55-12=43 60-13=47,65-14=51,70-15=55,75-16=59,80-17=63 85-18=67,90-19=71,95-20=75,100-21=79,105-22=83 110-23=87,115-24=91,120-25=95,125-26=99
130-27=103,13+26=39,14+28=42,15+30=45,16+32=48 17+34=51,18+36=54,19+38=57,20+40=60,21+42=63,22+44=66,23+46=69,24+48=72,25+50=75,26+52=78,27+54=81,28+56=84,29+58=87,30+60=90,31+62=93,32+64=96,33+66=99,5 ÷1 =5,10 ÷2 =5,15 ÷3 =5 20 ÷4 =5,25 ÷5 =5,30 ÷6 =5,35 ÷7 =5,40 ÷8 =5 45 ÷9 =5,50 ÷10 =5,55 ÷11 =5,60 ÷12 =5,65 ÷13 =5
70 ÷14 =5,75 ÷15 =5,80 ÷16 5,85 ÷17 5,90 ÷18 5 95 ÷19 5,100 ÷20 5
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